Sources of Nitrogen Pollution in Upstream of Fenhe River Reservoir Based on the Nitrogen and Oxygen Stable Isotope

Table 1

Chemical indices in the water samples collected from the upstream of Fenhe River.

Sampling sites	Wet period				Dry period
	T (°C)	pH	DO (mg/L)	ORP (mv)	T (°C)	pH	DO (mg/L)	ORP (mv)
S1	12.0 ± 0.6	8.23 ± 0.40	5.8 ± 0.3	257 ± 12	10.1 ± 0.5	8.52 ± 0.44	8.8 ± 0.4	164 ± 9
S2	13.0 ± 0.7	8.12 ± 0.41	11.2 ± 0.6	241 ± 13	15.5 ± 0.9	8.4 ± 0.40	16.5 ± 0.9	178 ± 9
S3	11.0 ± 0.5	8.51 ± 0.39	8.3 ± 0.4	253 ± 12	12.0 ± 0.6	8.73 ± 0.43	15.3 ± 0.8	187 ± 10
S4	14.0 ± 0.7	8.42 ± 0.44	5.5 ± 0.3	263 ± 13	18.1 ± 0.9	8.86 ± 0.46	12.3 ± 0.6	155 ± 8
S5	19.0 ± 1.03	8.25 ± 0.38	8.3 ± 0.4	254 ± 13	19.7 ± 0.9	7.83 ± 0.37	10.8 ± 0.6	155 ± 8
S6	19.0 ± 0.90	8.36 ± 0.41	12.5 ± 0.7	249 ± 11	18.5 ± 0.9	8.47 ± 0.42	6.84 ± 0.4	175 ± 10
S7	17.1 ± 0.86	8.35 ± 0.41	6.8 ± 0.4	201 ± 9	16.9 ± 0.9	8.48 ± 0.39	8.69 ± 0.4	170 ± 8
S8	14.0 ± 0.71	8.35 ± 0.47	5.5 ± 0.3	249 ± 12	18.1 ± 1.0	8.63 ± 0.48	6.38 ± 0.3	189 ± 10
S9	18.0 ± 0.83	7.83 ± 0.41	4.9 ± 0.2	252 ± 14	21.3 ± 1.0	8.07 ± 0.41	5.02 ± 0.3	161 ± 8
S10	25.2 ± 1.30	8.54 ± 0.44	9.7 ± 0.5	222 ± 12	23.5 ± 1.3	8.2 ± 0.39	10.8 ± 0.5	205 ± 10
S11	23.3 ± 1.14	8.51 ± 0.40	9.5 ± 0.5	234 ± 12	23.2 ± 1.1	8.63 ± 0.43	10.6 ± 0.6	248 ± 13
S12	23.6 ± 1.10	8.58 ± 0.43	8.6 ± 0.5	234 ± 11	22.9 ± 1.2	8.95 ± 0.46	12.5 ± 0.6	249 ± 12
S13	21.3 ± 1.12	8.85 ± 0.47	7.3 ± 0.4	246 ± 11	19.8 ± 0.9	8.85 ± 0.47	5.17 ± 0.2	184 ± 10